Shoe last



est., 9, 1934.

J. R. BlNDNER ET AL 1,975,763

SHOE LAST Filed March l, 1933 A'so Patented Qct. 9, 1934 Nr is 1,975,763SHOE LAST Julius R. Bndner and Purne A. Cooley, Mattoon, Ill.

Application March 1, 1933, Serial No. 659,036

14 claims.

This invention relates to shoe lasts, and has special reference to shoelasts of the type having the bottom provided with a metallic surfacehaving openings through which tacks may be driven into penetrable bodiesto secure the insole to the last.

Heretofore penetrable plugs have been mounted in cavities in the lastopposite the openings through the. metallic surface to receive the tacksand certain types of retaining means to retain the plugs have been used.However, when the last is repeatedly used and tacks are repeatedlydriven in and withdrawn, the penetrable plugs are eventually damaged andweakened to such an extent that they will no longer satisfactorilyretain the tacks. It is then necessary or desirable to remove thepenetrable plugsr and replace them with others that have not beendamaged or destroyed but which will receive and hold the tacks by whichthe insole is attached to the last'. VThese operations of removing thedamaged penetrable plugs and replacing them with others that have notbeen damaged, but which will receive and retain the tacks securing theinsole to the last, have been attended by numerous difficulties and insome cases with unsatisfactoryresults.

An object ofthe present invention is to provide an improved penetrableplug and support therefor that may be easily placed in the cavity of alast in and opposite the opening through the metallic surface of thelast, in combination with means for holding the penetrable plug inproper position to receive the tacks whereby the insole is attached tothe last.

Other objects of the invention will be readily apparent from` thefollowing description, reference being made to the accompanying drawing,in

which- Fig. 1 is a perspective view of a last having our inventionembodied therein. f Fig. 2-is a vertical cross sectional viewof the heelportion of the last o-n the line 2--2Aof Fig. 1.

Fig. 3 is a vertical longitudinalv sectional view of the heel portion ofthe last on the li`ne'3-3 of Fig. l.

Fig. 4 is a horizontal cross sectional View of the heel portion of thelast on the line 4-4 of Fig. 2. p

Fig. 5 is a vertical cross sectional view of the forepart of the last onthe line 5-5 of Fig. l.

Fig. 6 is an outer plan view of the metallic plate that is attached tothe heel portion of the last constructed and designed to cooperate withthe present invention. ,l i

Fig. 7 is a plan VView of the opposite side ofthe metallic plate that isshown in Fig. 6.

Fig. 8 is a perspective view of one of the penetrable plugs and thecontainer therefor, constituting an important feature of the presentinvention.`

Fig. 9 is a plan View of a plate designed and 60 adapted to be inserted,in repairing an old last, in anr opening in the metallic plate that isattached to the bottom of the last and provided with means for engagingand holding the support for the penetrable plug. v

Specically the type. of last shown is designed and adapted for use inmaking McKay shoes. These lasts usually comprise a forepart l and aseparate heel portion 2, both made of wood and connected together by ahinge pin 3, whereby the last may be broken to extended or angularposition.

The under surface of the forepart l of the last is covered by a metallicplate 4 attachably secured thereto by removable and replaceablefasteners comprising screws 5 and nails 6. And the under surface of theheel portion 2 of the last is covered` by a metallic plate 7 securedthereto by removable and replaceable screw fasteners 8 and nails 9.

@As shown, the heel portion 2 of the last is formed with a recess l0larger than the hole 11 through the plate '7 and opening into a well 12in the body of the heel portion 2 which well is of less diameter thanthe recess 10. The marginal portion 13 of the plate 7 around the opening1l extends into the recess 10 and is provided with opposite notches 14.

A metallic plate 15 is attached to the plate 7 within the recess 10 byfasteners 16 and has an opening communicating with the opening 11 andnotches 17 communicating with the notches 14. This plate l5 is split toprovide two opposite resilient arms 18 extending away from the plate 7and toward the bottom wall of the recess 10. 95 And the terminalportions of the arms 18 are bent to provide notches 19 (Fig. 3).

Our invention comprises a cartridge or shell 20 of approximately thesame diameter as the diameter of the opening l1, so that said cartridge00 or shell may be extended through said opening 11 and through therecess 10 into the well l2. A circumferential flange 2l, in connectionwith the outer end of the cartridge or shell 20, will seat against themarginal portion 13 of the plate 7 105 around the opening 11, the outersurface of said flange 21 being approximately ush and even with thesurrounding surface of the plate 7. This cartridge or `shell has a pairof pins 22 projectl ing from diametrically opposite sides and ca- 1710indicated.

pable of passing through the notches 14 and 17, so that, when thecartridges turn, these pins will engage and rub against the surfaces ofthe arms i8 and iiex said arms toward the plate 'i and then seat in thenotches i9 formed in said arms. Thus, the power and resiliency of theresilient arms 18 are utilized to engage the pins 22 and thereby holdthe cartridge 2) securely in connection with the last. The cartridge 2Dis filled with a body 23 of penetrable metal, such as lead or otherpenetrable substance, into which a tack driven through the insole may bedriven to attach the insole to the last.

Another one of these removable and replaceable penetrable plug holdersis shown connected with the rear of the forepart l of the last, andsimilar reference numerals are applied to visible parts thereof.

Another one of these removable and replaceable plug holders is shownattached tcthe front of the forepart l of the last. As there shown, adisc l2li is mounted in a hole cut in the plate 4. And the disc 24 is oflarger diameter than the recess 2. which corresponds to the recess 10,so that the marginal portion of the disc 2d seats against the under sideof the forepart 1 of the last. rlhis disc may be attached in thisposition by fasteners 26 extending through the disc and into the body ofthe forepart l, and also by spotwelds` 27. The fasteners 25 and thespotwelds 27 may both be used, or either be used without the other, asdesired.

This disc 24 is formed with a central opening 28 having a marginalportion 29 provided with opposite notches 30 through which the pins l2of a cartridge or shell 2l) may pass to permit the flange 2l to seatagainst thD inwardly extended marginal portion 29 while the pins 22engage the resilient arn'm 1S of the plate 15 attached to the concealedside of the disc 24.

It is now clear that our invention comprises a penetrable body and asupport therefor, in combination with means whereby said support may beattached to and detached from a last, and the last easily and quicklyrepaired and conditioned for further use when the preceding penetrableplugs have become useless, The construction, arrangement andrelationship of the parts may be varied within the scope of equivalentlimits and otherwise than in the particulars speciiically We claim:

l. In a last having well therein and a metallic plate attached to thebottom of the last and having a hole opening into well, a supportingextending through said hole and into said well, resilient means havingdetachable connection with and holding supporting member in said holeand in well, and a body of penetrable material supported by saidsupporting member.

2. In a last having a well in the under side thereof and a metallicplate attached to the bottom of the last and provided with a holeopening into said well, an upwardly extended seat integral with themarginal portion of said plate around said hole, a supporting memberremovably mounted in `said hole and extending into said well andengagiing the outer side of said seat, a body of penetrable material insaid supporting member, and a latch device in connection with said plateengaging and holding supporting member in said position.

3. In a last having a metallic plate attached to the bottom thereof andhaving a hole through said plate opening into a well in said last, apair of resilient arms in connection with the side of said plate that istoward said last, a penetrable plug extending through said hole and intosaid well, and means supporting said plug and engaging said arms to holdsaid plug in said position.

fl. In a last having a well therein and a metallic plate attached to thebottom of the last and having a hole opening into said well, an upwardlyextended seat in connection with said plate aroundv said hole, a pair orresilient arms attached to the upper side of said plate, a shellextending through said hole and into said well and having acircumferential ange engaging said seat and limiting extent of movementof said shell through said hole and into said well, means in connectionwith said shell and engaging said arms for holding said shell in saidposition, and a penetrable body in said shell.

5. In a last having a well therein and having a metallic plate attachedto the bottom of the last and provided with a hole opening into saidwell, an upwardly extended seat in connection with the marginal portiono said plate around said hole, a shell extending through said hole andinto said well and having an open outer end, a circumferential flange inconnection with the outer end of said shell engaging said seat andlimiting extent of movement of said shell through said hole and intosaid well, a body of penetrable material in said shell and extending tothe open outer end thereof, and resilient arms in connection with theupper side of said plate engaging and holding said shell insaid'position.

6. In a last having a metallic plate attached Ato the bottom thereof andprovided with a hole opening vinto a well in the last, a pair oiresilient arms in connection with the upper side or" said plate adjacentto said hole, a penetrable plug, and means supporting said plug andextending through said hole and into said well rand engaging saidresilient arms to prevent outward movement of said shell from said holeand said well.

7. In a last having a well therein and a metallic plate attached to thebottom of the last and provided with a `hole opening into said wall, apene'- trable plug extending through said hole and into said well andhaving its outer end approximately even with the outer surface of saidplate, arms in connection with the upper side of said plate adjacent tosaid hole, and lateral projections in connection with said plug engagingsaid arms and preventing outward movement of said plug.

8. In a last having a well therein and a metallic plate attached to thebottom of the last and provided with a hole opening into said well, apenetrable plug extending through said hole and into said well andhaving its outer end approximately even with the outer surface of saidplate, arms in connection with the upper side of said plate adjacent tosaid hole, and lateral projections in connection Vwith said plugengaging said arms and preventing outward movement of said plus, saidplug being rotative to disengage said projections from said arms andsaid plate having notches from which said projections may pass outwardlyto permit detachment of said plug.

9. A last having a well therein, a metallic plate attached to the bottomof said last and having an enlarged hole, a metallic disc mounted insaid hole in said plate and against the bottom of the last and having ahole opening into said well, means for securing said disc in saidposition, a pair of resilient arms attached to the upper side of saiddisc adjacent to said hole, a shell extendles ing through said hole andinto said well and having an open outer end, a penetrable plug in saidshell, and means on said shell and engaging said arms for supportingsaid shell in position in which the outer end of said plug isapproximately even with the outer surface of said disc and said plate.

l0. A last having a recess in its under side and a well opening intosaid recess, a metallic plate attached tc the bottom of the last havingan opening into said recess and said well, arms attached to said platein said recess, a shell extending through said hole and said recess andinto said well and having an open outer end, a penetrable plug mountedin said shell, means limiting extent of inward movement of said shell,and means in connection with said shell and engaging said arms in saidrecess limiting extent of outward movement of said shell.

11. ln a last having a recess in its bottom and a well opening into saidrecess, a metallic plate having a hole opening into said recess and saidwell, a seat in connection with the marginal portion of said platearound said hole extending into said recess, a shell extending throughsaid hole and said recess and into said well and having an open outerend, a flange in connection with the outer end of said shell engagingsaid seat, arms in connection with said plate within said recess,projections in connection with said shell engaging said arms, said shellbeing rotative to engage said projections with and disengage saidprojections from said arms and said platev having notches through whichsaid projections may pass outwardly, and a penetrable plug in said shelland having its outer end approximately even with the outer surface ofsaid plate.

12. As an article of manufacture, a penetrable plug adapted to beinserted in and Withdrawn from a recess in a shoe last, comprising ashell having a circumferential flange in connection with its outer openend, a body of penetrable material in said shell, and two pinsprojecting outwardly from opposite sides of said shell and spacedinwardly from said flange.

13. In a last having a well therein and a metallic plate attached to thebottom of the last and having a hole opening into said well and havingnotches at the sides of said hole, resilient arms attached to the upperside of said plate and spaced from said notches, a shell rotative insaid hole and in said well and having a circumferential flange engagingthe outer surface of the marginal portion of said plate around saidhole, a body of penetrable material in said shell, and projectionsextending from said shell and engaging said arms, said shell beingrotative to disengage said projections from said arms and withdrawableoutwardly from said well when said projections are in alinement withsaid notches.

14. In a last having a well therein and having a metallic plate attachedto the bottom of the last and provided with a hole opening into saidwell and having a recess opposite and of larger diameter than said holeand opening into said well, resilient arms attached to the inner side ofsaid plate in said recess, a shell extending through said hole and saidrecess and into said well, means limiting extent of inward movement ofsaid shell, projections in connection with said shell engaging saidresilient arms and cooperating therewith to hold said shell instationary position, and a penetrable plug in said shell.

JULIUS R. BINDNER. PURN'E A. COOLEY.

